Q: Is 309,880 a Prime Number?
A: No, 309,880 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 309880 can be evenly divided by 1 2 4 5 8 10 20 40 61 122 127 244 254 305 488 508 610 635 1,016 1,220 1,270 2,440 2,540 5,080 7,747 15,494 30,988 38,735 61,976 77,470 154,940 and 309,880, with no remainder.
Since 309,880 cannot be divided by just 1 and 309,880, it is not a prime number.